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import android.app.Activity;
import android.content.ComponentName;
import android.content.Context;
import android.content.Intent;
import android.net.ConnectivityManager;
import android.net.NetworkInfo;
import android.provider.Settings;
 
/**
 * 网络工具类，包含网络的判断、跳转到设置页面
 */
public class NetWorkUtil {
 
	/**
	 * 判断当前是否有网络连接
	 * @param context
	 * @return	有网络返回true；无网络返回false
	 */
	@SuppressWarnings("null")
	public static boolean isNetWorkEnable(Context context){
		ConnectivityManager manager = (ConnectivityManager) context.getSystemService(Context.CONNECTIVITY_SERVICE);
		NetworkInfo networkInfo = manager.getActiveNetworkInfo();
		if (networkInfo != null || networkInfo.isConnected()) {
			if (networkInfo.getState() == NetworkInfo.State.CONNECTED) {
				return true;
			}
		}
		return false;
	}
	
	/**
	 * 判断当前网络是否为wifi
	 * @param context
	 * @return	如果为wifi返回true；否则返回false
	 */
	@SuppressWarnings("static-access")
	public static boolean isWiFiConnected(Context context){
		ConnectivityManager manager = (ConnectivityManager) context.getSystemService(Context.CONNECTIVITY_SERVICE);
		NetworkInfo networkInfo = manager.getActiveNetworkInfo();
		return networkInfo.getType() == manager.TYPE_WIFI ? true : false;
	}
	
	/**
	 * 判断MOBILE网络是否可用
	 * @param context
	 * @return
	 * @throws Exception
	 */
	public static boolean isMobileDataEnable(Context context){
		ConnectivityManager manager = (ConnectivityManager) context.getSystemService(Context.CONNECTIVITY_SERVICE);
		boolean isMobileDataEnable = false;
		isMobileDataEnable = manager.getNetworkInfo(ConnectivityManager.TYPE_MOBILE).isConnectedOrConnecting();
		return isMobileDataEnable;
	}
	
	/**
	 * 判断wifi 是否可用
	 * @param context
	 * @return
	 * @throws Exception
	 */
	public static boolean isWifiDataEnable(Context context){
		ConnectivityManager manager = (ConnectivityManager) context.getSystemService(Context.CONNECTIVITY_SERVICE);
		boolean isWifiDataEnable = false;
		isWifiDataEnable = manager.getNetworkInfo(
				ConnectivityManager.TYPE_WIFI).isConnectedOrConnecting();
		return isWifiDataEnable;
	}
	
	/**
	 * 跳转到网络设置页面
	 * @param activity
	 */
	public static void GoSetting(Activity activity){
		Intent intent = new Intent(Settings.ACTION_ACCESSIBILITY_SETTINGS);
		activity.startActivity(intent);
	}
	
	/**
     * 打开网络设置界面
     */
    public static void openSetting(Activity activity) {
    	Intent intent = new Intent("/");
    	ComponentName cn = new ComponentName("com.android.settings", "com.android.settings.WirelessSettings");
    	intent.setComponent(cn);
    	intent.setAction("android.intent.action.VIEW");
    	activity.startActivityForResult(intent, 0);
    }
}